Apparatus for coating covers.



T. L. TALIA-FBRRO. APPARATUS FOR GOATINGGOVERS. APPLIdATION FILED OCT. 23, 19 12.

1 ,089,350. Patented Mar.3,19l4

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APPARATUS FOR COATING COVERS. APPLICATION FILED 0013.23, 1912.

1,089,35Ufl Patented Mar. 3, 1914.

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THOMAS LUCIEN TALIAFERRO, OF WHEELING, WEST VIRGINIA, ASSIGNOR, BY MESNE ASSIGNMENTS. T0 IITlOENIX-HERMETIC COMPANY, OF

PORA'IION OF NEl/v YORK.

NEW YORK, N. Y., A COR- l ,ossmsoi Specification of Letters Patent.

Application filed October 23, 1912. Serial No. 727,470.

lie it known that l, 'lnouas Locum 'l.\i.i.\r"ii|.'no. a citizen ol' the United States, residingat \l'heeliup in the county of Ohio, State ol' West Virginia, have invented certain new and usel'ul improvements in ..\pparatus l'or (outing (lovers. of which the following i:-' a description reterent'e being had to the :u-t'oinpanyiug drawing and to the li g ures ot rcl'ereuce marked thereon.

The lll\';lltlt ll relates to new and useful improwinrnts in an apparatus t'or coating covers. and more porcelain covers.

An object oi the invention is to provide a coating; apparatus wherein a plastic seal-- inc ring may be tornu-d and deposited on the seating, mine (it the cover.

'l'urther object of the invention is to provide a plastic sealing ring which is 't'orlned in spiral layers, so that a coin;iarat'irclv llllt'h uni t'orin ring i: constructed and placed on the seal int; ed tzje oi the cover.

"lhese and other objects will in part be obvious. and will in part be hereinafter more. tully described. v I

in the drawings, Figure l is a. perspective view of one TOtlll of apparatus which may be used in carrying out the invention; Fig. 2 is a transverse sectional view oi the same; Fig. :3 shows one t'orm ol can cover having a plastie sealing ring; applied thereto by my improt'ed apparatus; Fig. -I- is a tLaJlsYt'ElSt. sectional view showing a slightly modified form oi apparatus for coating the cover.

The inven on consists generally of a receptacle for holding the plastic ct'iating material and av carrier \vhieltpasses through the plastic material, so that. the layer of the plastic sealing material is {alien up by said carricix Means are provided which cooperate with the carrier so that the surplus coating material is removed and a uniform layer lel't. on the carrier. The cover to be coated is preseutetjl to the carrier in such a way that the ethic of the cover scrapes the coating material from the carrier. and the cover is turned so as to present its entire circumference to the carrier, and thus the coating material is deposited in a spiral layer ":1 the cover.

particularly to glass or The thickness of the coating on the cover while in contact with the carrier.

In the present inns in the side walls of the receptacle 1 and is tuovided with a crank Hlltl roll may he turned.

surtace extends into to the upper ledge bolt (3. \Vlllt'll passes scraper.

moved from the roll, left on the roll The cover 8 and is provided with the sealing ring. In

is seated on the body of the.

receptacle and the outer be coated is placed on 16 to a bracket 17 Patented Mar. 3, 1914.

is regulated by the thickness of the coating on the carrie' and the number of tunes the cover is rotated ltel'crring more in detail o the drawings, my. in'iproved apparatus consists of a recepof any desired is placed the I prefer to use a which includes a volatile solvent, so that said sealing material when deposited upon the cover and a plastic sealing ring. It is obvious, however. that other solvents may embodiment of the invention a rotat ng carrier whichis in the turm ot a rol.-. is mounted in suitable bear 3, whereby This roll or rotating; carrier 2 so positioned. that its lower the plastic sealing ma terial t as shown in Fig. 2 of the drawings. A scraper or evener 5 is adjustably attached of the receptacle 1 by a through a slot 7 in said This scraper or evener may be adjusted relative to the coating roll or carrier, so that the surplus material will be reand a uniform layer as it passes from the scraper. to be coated is preferably of the type which is made of glass or porcelain an annular rib 9, spaced from the outer edge of the cover, so as to form an annular groove or seat 10 for a Fig. 3 I have shown a receptacle 11., to which the cover 8 is applied, and I hate also shown the sealing ring 12 as placed on the seat. 10. so that when the cover receptacle, the sealmgrinc comes between the edge of the edge of the cover. in this form of receptacle the cover is retained by a metallic band 13. which may be of the usual construction. The cover 8 t0 the chuck 14, which is mounted to rotate in a slcevelli, pivoted at mounted on the front wall of the coating receptacle. A band wheel 18 is attached to the supporting shaft for the chuck, and is rotated from the band Wheel 19 carried by the main shaft supporting the coating roll An idle pulley 20 is utilized for directing the band from the driving wheel on the main shaft to the operating band wheel for the chuck.

lVhile I have shown the band wheel connection for driving the chuck, and a crank for operating the main shaft, it will be understood that these features are merely used for purposes of illustration, and that any desired mechanism may be used for rotating the main shaft and for rotating the chuck in proper timing therewith. The idle pulley 520 is mounted on an adjustable bracket 21, whereby the tension on the driving band may be varied.

As herein shown, the chuck 14 is provided with an annular ledge 322, which forms seat for the cover. Said ledge may be broken away as at 23, see Fig. l, to facilitate the removal of the cover from. the chuck.

' This chuck is positioned so that the same rotates in a plane cutting at an angle the surface of the roll or carrier on which the coating material is presented to th cover. The cover itself also comes into contact with the surface of the roll, and thereby operates to scrape the plastic coating from the coating-roll. Inasmuch as the cover is being rotated while the coating roll is rotated, a spiral layer will be deposited in the seating groove 10 of the cover. The thickness of this layer will depend upon the thickness of the coating on the roll, which may be regulated by varying the position of the evener or scraper 5; or the thickness of the coating may be varied by changing the timing of the rotation of the chuck relative to the rotation of the coating roll. Inasmuch as this chuck is continuously rotating, the layer deposited on the cover will be uniform throughout and the sealing ring built up of these spirally laid layers will also be of uniform thickness. The thickness of the finished ring will he determined by the time that the cover is held in contact with the coating roll.

By this ap 'iaratus, it will be apparent that I am able to huild up sealing ring of any desired thickness, and to practically fill the entire seating roove formed in cover. Then again, b my apparatus, wherein the cover scrapes the scaling material from the coating roll, said roll will operate to pack or press the sealing material against the cover. This sealing material, which is adhcsive in nature, will adhere, to a certain extent, to the coating roll, and in order to scrape the same therefrom, the material will necessarily pack against the cover. It will, therefore, be seen that I am able to build up a sealing ring of plus ic material which is practically solid and of uniform. shape and thickness.

I am aware that prior to my invention it has been common to coat metallic covers with a coating roll having a layer of coat-' mg material thereon which rotates in contact with the cover, and I do not claim herein such structure. In these coating devices, however, so far as I am aware, the cover is moved in a plane parallel with the axis of rotation of the coating roll, and, therefore, the thickness of the coating material placed upon the cover, depends entirely upon the adhesive strength of the sealing material. In my apparatus, above descr'bed, the sealing material is transferred to the part to be coated by a scraping action, which may cause the sealing material to pile up to any desired thickness, and does not depend upon.

the. adhesive strength of the sealing material.

In I have shown a slightly modified form of the invention. In this figure the sealing material it is placed in the receptacle 1, and taken up by a carrier or, rotating roll 2, as above described. sealing material on the roll is also made uniform by the evencr or scraper In'the place of the chuck shown and described in Figs'l and 2, I have provided a support 24-, which extends along the receptacle from end to end thereof. This support is carried by suitable brackets mounted on the receptacle. The roller 2 is also extended longitudinally, so as to p actically reach from end to end of the receptacle. The cover to be coated is placed on the support 24, and

will beheld thereby at an angle to the direction of travel of the coating surface. A retaining plate 25 may be used to hold the cover on the support 2%. A traveling belt 26 is suitably supported and driven, so as to contact with the upper edge of the cover, and cause the san'ie to roll along the roll 2. This rolling of the cover along the roll secures the same function as the rotating of the chuck, as described above. The manner of coating the cover is precisely the same as above noted.

It will be obvious that minor changes in the details of constrimtion and arrangement of parts may he made, without departing from the spirit of the invention, as set forth in the appended claims.

Having thus described. my invention, what I clainias new and desire to secure by llcltcrs Patent, is

1. An apparatus for applying a. coating to covers including a traveling device adapted to carry a layer of coating material, means for supplying a uniform layer of coating material to said traveling device, means for supporting and rotating :1 cover with its edge in contact with said traveling device and with its surface at an angle to the latter and with said cover in a plane cutting the surface of the traveling device transversely The'layer of to its direction of movement whereby said cover is caused to scrape said coating material from the traveling device.

2. An apparatus for applying a plastic coating to covers including a traveling deviceadapted to carry a layer of sealing material, means for supplying a uniform layer of sealing material to said traveling device, means for supporting the cover in a plane cutting the surface of the traveling device at an angle, whereby said COVCIylS caused to scrape the sealing material from the traveling device, and means for turning said cover to present the entire outer circumference thereof to said traveling device.

3. An apparatus for applying a plastic coating to covers, including a coating roll, means for supplying said coating roll with a uniform layer of sealing material, means for supportin the cover in a plane cutting the surface 0 the coating roll at an angle and in contact therewith, whereby said cover may be caused to scrape the sealing material from said coating roll, and means for turnmg the cover to present the entire outer circumference thereof to said coating roll.

4C. An apparatus for applying a plastic coating to covers including a coating roll, a receptacle for supplying plastic sealing material to said coating roll, a scraper cooperating with said roll for forming a uniform layer of sealing material on said coating roll, a support on which the covers are adapted to rest whereby said covers may be rolled longitudinally of said coating roll and in contact therewith whereby the edges of the covers scrape the coating material from said coating roll, and means for engaging said covers and rolling the same along said support and coating roll.

In testimony whereof, I afiix my signature in the presence of two witnesses.

THOMAS LUClEN TALIAFERRO. Witnesses:

ALLAN HOWE KELLY, A. L. METZNER. 

